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• Arguments

arguments

Captured arguments to a function.

Argument Sinks

Like built-in functions, custom functions can also take a variable number of arguments. You can specify an argument sink which collects all excess arguments as ..sink. The resulting sink value is of the arguments type. It exposes methods to access the positional and named arguments.

#let format(title, ..authors) = {
  let by = authors
    .pos()
    .join(", ", last: " and ")

  [*#title* \ _Written by #by;_]
}

#format("ArtosFlow", "Jane", "Joe")

Spreading

Inversely to an argument sink, you can spread arguments, arrays and dictionaries into a function call with the ..spread operator:

#let array = (2, 3, 5)
#calc.min(..array)
#let dict = (fill: blue)
#text(..dict)[Hello]

构造函数

如果类型具有构造函数，可以像函数一样调用它来创建一个该类型的值。

Construct spreadable arguments in place.

This function behaves like let args(..sink) = sink.

#let args = arguments(stroke: red, inset: 1em, [Body])
#box(..args)

arguments

arguments

必需参数位置参数

位置参数按顺序传入，不带名称。

可变参数

可变参数可以多次传入。

The arguments to construct.

定义

函数和类型可以有与其关联的定义 (成员或方法)。可以使用 "." 操作符来访问调用它们。

pos

Returns the captured positional arguments as an array.

named

Returns the captured named arguments as a dictionary.

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